Card-testing device



y 1929- A. WEILAND ET AL CARD TESTING DEVICE Filed July 16, 1924' 3Sheets-Sheet May 7, 1929.

A; WEILAND ET AL.

CARD TESTING DEVICE Filed July 16, 1924 3 S heets-Sheet 2 mvsmoizs 0140M& Ar/141 0.,

ATTORNEY y 7, 1929- A. WEILAND ET AL 1,712,183

mu) TESTING DEVICE Filed July 16, 1924 s Sheets-Shet 3 INVENTORS OVM$ ATTORIVEY Patented May 7, 19 29.

K UNITED STATES PATENT OFFICE,

ALFRED WEILAND, F NESHAJN'IG, NEW JERSEY, AND CHARLES .A. MEZGER, orBROOK- LYN, NEW YORK, ASSIGNORS, BY MESNE ASSIGNMENTS, To REMINGTON BAND11m, OE NEW YORK, N. Y., A CORPORATION OE DELAWARE.

calm-TESTING DEVICE. 9

Application filed July 16,

larly to the testing of the cards for defects which would causeerroneous operationbf statistical machines designed to function inaccordance with records formed by perforating or punching the cards inaccordance with the matter to be recorded.

- Usually the cards'are prepared by slitting 10 sheets of suitablematerial, such as heavy paper, longitudinally into strips of a. widthcorresponding to one dimension of the cards. These strips are formedinto rolls and mounted in machines in which predetermined matter isprinted on the strips to form card sections and such card sections aresubsequently cut from the strips to form the completed cards.

Inasmuch as the most perfect tabulating or '20 likemachines may becaused bv defective cards to function erroneously the importance oftesting the cards for such defects and re jecting the defective cardswill be evident. Such erroneous functioning may be due' to defects of anumber of different kinds but very frequently is due to a hole or weakspot,

in the material of the cards which allows one of the analyaing members,such as a springpoints on the cards weak spots or holes which inthepassage of the cards through the analyzer of a card-controlled machinewould produce the effect of perforations made by the perforatingmachines, to provide means for detecting defective cards and "separatingthe same from the good cards, and to provide means for testing cards insuccession, collect ing the good cards at one location, and ejectingeach defective card without interference wiilrthc continuity of thetesting operation.

According to one embodiment of the invention the testing of the cards iseffected concomitantly with the cutting of the cards from a strip. Tothis end a pin box having the same number of spring-pressed pins as thepin boxes of the analyzers of the card-controlled machines is placed inthe cutting head so that at each reciprocation of the head the todefects in the cards, to detect at the index 1924. Serial No. 726,252.

card being severed is engaged at each of its index points by the pins ofthe pin box.

If a weak spot or hole occurs at any index polnt in a card thecorresponding pin will pass through the card andin connection with othermeans provided for the purpose will cause appropriate action, such ascausing the defective card to be ejected in such a manner as to separateit from the-good cards. It will be evident that the detection of a weakspot might also be used to operate a signal or to stop the machine.

Such weak spots or holes are generally the result of slime spots formedduring the process of manufacture the paper, but may also arise frominjuries received during the handling of the paper, including thatinvolved in printing and cutting the cards. An advantageous feature ofthe present invention is that the testing is effected just as the.manufacture of the card is completed and conse quently the discoveryofsuch defects as would cause defective operation of the card-controlled machines is assured.

Other features-and advantages will hereinafter appear. v

In the accompanying drawings Fig. 1 is a front elevation of a machineembodyin one form of the invention, parts being bro en away to show theunderlying structure; l

Fig. 2 is a perspective view of the card testing means;

Fig. 3 is a diagrammatic view showing the I manner in which ejection ofa defective card is obtained;

Fig. 4 is a detail view of the circuit-breaking device represented inFig. 3;

Fig. 5 is a fragmentary sectional view illustrating the detection of adefect at one of the index pointsof a card; and

'Fig. '6 is a. diagrammatic view illustrating the use of the detectingdevice to stop the machine.

A strip 10 of suitable material, suchas heavy paper, and of the samewidth as the cards to be prepared is drawn from a roll 11 and through atension device 12by cooperat-- ing rollers 13 and 14, of Which thelatter is driven at suchia speed, by means tobe described hercinafter,as to maintain a loop 15 to avoid interference with the intermittentfeeding of the strip through the card pr nting and cutting machine.

- comprises a stationary platen 20 and a typecarrying head 21reciprocable by links 22 to print one by one, on the strip 10 fedthere-.

through, card fields including index points at which perfo'rationsmay bemade to record certain data. Between printingoperations the strip 10 isadvanced a distance slightly greater than the length of a card byintermittently operated feed rollers 23 and 23', from which the strip isfed to the cutting element 19 at which each card is severed from thestri at both ends by fixed blades 24 and 25 and b ades 26 and 27 on ahead 28 reciprocable ona fixed bracket 29.

During the cutting operation the blade 26 tends to carry the new leadingend of the strip below the upper surface of the fixed blade 24. Toinsure restoration of such new leading end to a position to feed overthe blade 24, provision-is made of a springsupported bar 30 depressed byfingers 31 at each downward movement of the cutting head 28.

and acting upon upward movement of the head to restore the leading endof the strip to position to be fed over blade 24. The strip ismaintained in position on bar 30 by means of a guide 32 and when fedthere'throughis guided by meansincluding plates 33 into cutting positionbetween. rollers 34 and rollers 35 mounted on pivoted bell-cranks 36 andurged against rollers 34 by means of springs Upon completion of eachcutting operation the head 28 is lifted and the rollers 34 and 35 areactuated to advance the completed card toa receiver 38 where it isnormally checked by a gate 39 and allowed to drop on a support 40 whichmay be moved downwardly, as

the number of completed cards increases.

In each cutting operation there is severed from the leading end of thecard thus formed a narrow strip of waste material which must beprevented from passing into the receiver To provide for the separationof such strips from the cards, the receiver 38 is spaced from thecutting device and provision is made of a nozzle 41 from which jets ofair are emitted at such intervals as to drive downwvardly each wastestrip as soon as it is severed by the cutting element.' The supply ofair to the nozzle 41 is controlled by- I a valve .42 having a stem43,.and a device 44 moving with the head 28 and constructed to yield asit moves downwardly. The dea vice 44 comprises a pivoted lever 45 havinga roller to engage the stem 43 and normally held against astop 46 by aspring 47. In

' the downward movement the spring 47 yields so that there'is noactuation of stem 43 but in the upward movement of the head, 28', the

stop 46 holds the lever 45 rigidly and the stem 43 is actuated.

Mounted on the table 16 is an electric m0- ,tor 49 which acts throughgears 50 and 51 to drive a shaft 52 and through a gear, not shown, onsaid shaft to drive a train of gears .53, 54, 55 and 56. The gear 54 ismounted on a shaft 57 and acts through bevel gears 58 to, drive theroller 14 which in connection with roller 13 maintains the loop 15; 1The gear 55 is mounted on a shaft 59 having at its ends disks 60provided with eccentric pins 61 on which are pivoted the lower ends ofthe links 22 for reciprocating the printing head by means of a link 65with a pivot 66 on the lower end of the slide portion of the cuttinghead 28. Due to the equality of size of the gears 55 andv 56 and thecorresponding ar rangement of the eccentric pins 61 and 64, the printinghead 21 and the cutting head 28 are operated in synchronism.

The shaft 62 is also utilized to effect the intermittent feeding of thestrip 10 and to this end is provided with a bevel gear 67 which actsthrough a bevel gear. 68', shaft 69, disk'70, eccentric pin 71-and arack 72 to turn a pinion 7 3 and a disk 74 attached thereto alternatelyin opposite directions on a shaft 75. During each downward movementactuates both the sprocket wheel and the shaft. Such actuation of theshaft 75 effects a feeding movement of thestrip 10 by the the rollers23' mounted by means of a shaft 79 on pivoted arms 80 and pressedagainst the roller 22 by springs 81 attachedto the .arms 80 and to fixedparts of the machine.

Such feeding of the strip isefiected between the printing and cuttingoperations and. during the next operation of printing a card field atthe printing element 18 and of severing at the cutting element 19a cardpreviously printed at the printingelement, there is an upward idlemovement of the rack 72.

His necessary to remove each card from the cutting element as soon as itis severed in order to permit thenew leading end of the strip to be fedinto the cutting element. To this end the sprocket wheel 78 is connectedby means of a chain 82 with a smaller sprocket wheel 83 on a shaft 84 onwhich are fixed the.

ment with such speed as to. carry them into 105 roller 23. which isfixed on the shaft 7 5. and Y engagement with the gate 39 at the outerend of the receiver 38.

Statistical cards prepared as hereinbefore described are of'the properdimensions to assure proper positioning in the perforating machines usedfor recording certain data by perforating the cards accordingly and inthe machines which are designed to be controlled by said cards inaccordance with the perforations therein. Such cards are, however,liable'to have; defects such as weak spots'or holes. If such defectsoccur at index points on the cards, the operation of a machine under thecontrol of the defective cards would probably be erroneous in that itwould be operated as if perforations had been made intentionally at suchpoints. Such defects in cards. if located away from the index pointswould probably have no detrimental effect in the operation of machinescontrolled by the cards.

According to the present invention each card is teste at its indexpoints only for defects which, when the card is placed in. a machine tobe controlled thereby. would cause erroneous operation; and, accordingto the preferred embodiment of the invention, such printing and cuttingoperations.

testing takes place at the end of the card If, the card field weretested at an earlier stage, the testing would not be so effective inthat the cards might be injured during subsequent steps in theirpreparation or might be displaced so that the index points in the,finished cards would not agree with the points tested.

' For such testing, provision is made of a pin box 90 mounted in thecutting head 28 and having pins 91 corresponding in position and numberto the pins of the pin boxes of the machines to be controlled by thecards. Consequently during the cutting'movement of the head 28, the cardbeing cut is engaged at each index point thereof by a pin 91. The

, pins 91 are guided in plates 92 and 93 of the pin box and are normallvheld in depressed position with collars 94 thereon engaging plate -93.bysprings 95 interposed between the plate 92 and the collars 94. When thehead 28 is lowered to cut a certain card 96, the pins 91 will usuallybeforced back and the corresponding springs 95 compressed.

at the cutting position is a card-supporting plate 97 which togetherwith a plate 98 constitutes guiding means for circuit-closing pins 99normally held in raised position by springs 100 interposed between theplate 98 and-collars 101 engaging the lower face of the plate 97 andposltion-ing the upper ends of the pins 99 flush with the upper surfaceof the plate 97. As shown in Fig. 5, the heads of the pins 99 are largerin cross-section than the pins 91, thereby making allowance for slightrelative displacement between the pins 91 and 99. The plates 97 and 98are of metal and directly connected with the'frame of the machine andwhen a pin 99 is depressed, as shown in Fig. 5, it will, by effecting anelectrical connection between the plates 97 and 98 and a plate 102supported by but insulated from the plate 98, close a circuit and, bymeans to be hereinafter described, rock a shaft 103 carrying the gate 39and swing it outwardly to a position indicated in Fig. 1.

Mounted on the shaft 103 is a disk 104, which may be of insulatingmaterial, having at its edge a groove in which lies a flexible member orband 105 connected at one end to a spring 106 and at the other end tothe core 107 of a solenoid 108 whose coil 109 is positioned betweenmembers 110 projecting from a plate 111 of insulating material. Thelower end of the spring 106 is attached to a lug 112 sub path of thecore 107 which is normally held by the spring 106 in a raised positiondetermined by engagementof a shoulder 116, at one end of a cut-out inthe disk 104, with a stop 11-7.

Rotation of the disk 104 in the opposite direction is limited byashoulder 118, at the other end of the. cut-out, which may' be broughtinto engagement with the stop 117.

The coil 109 of the solenoid 108 is connected at one end with a bindingpost 119 on a shelf 120 of insulating material projecting from the lowerend of the plate 111, and the binding post119- is connected by aconductor 121 with a suitable source of current, such as a battery 122.The battery 122 iscon'nected at its other side with the plate 102bysmeans of a conductor 123 having therein a switch 124. The other endof the coil 109 is connected by a conductor 125 with the hub 113 of thelever 114 and is grounded with the frame at that point, as indicated inFig. 3. Mounted on the shelf 120 is a spring contact 126 having itsupper end adjacent the arm 114 but normally out of contact therewith,and connected at its lower end, by means of a conductor 127, with theconductor 123 at the point 128'.

' When'upon detection of. a defect at one of the index points of a card,a pin 99 is brought into contact with the plate 102, current flows fromthe battery 122 through the conductor 121, the coil of the solenoid 108,the conductor 125,.the frame, the depressed pin 99, and

the plate 102 from which-it flows back-to the.

battery. Consequently the coil 109 is ener-' gized to pull down the core107 and'swing the gate 39 to open position. 1Downward move ment of thecore 107 will, however, bring the i arm 114 into engagement with thespring contact and cause the current to follow a path of lowerresistance from the conductor 125 through the arm 114, spring contact126 and conductor 127,. thus preventing sparking when contact is brokenbetween a depressed pin 99 and the plate'102. After the closing of thebattery circuit through the spring contact-126, the core 107 may bedrawn down unthis condition, a circuit-breaking device 130 is interposedbetween part-s of the conductor 12 The switch'portion of the device ismounted on a plate 131 of insulating material and this plate is attachedby'suitable means such as screws 132 to a'U-shaped yoke 133 which isclamped by screws 134 to the bracket 29. Mounted on the plate 131' is anL-shaped metal plate 135 having a vertical portion, to the lower end ofwhich is pivoted a contact arm 136, and a horizontal portion connectedby a spring 137 with the contact arm 136 to hold a lug 138 on the latterin engagement with a contact 139 mounted on the plate 131 and providedwith a bindingscrew 140 for securing thereto one branch of the'conductor121, shown in Fig. 3 as the branch'connected directly with the battery.The other branch of the conductor 121 is connected with the plate 135 bysuitable means such as a binding screw 141. Mounted on the freeend ofthe contact arm 136 by a' pivot 142 is'a bell crank 143 having a lateralprojection 144 to engage the forward "end of the arm 136 and preventdownward f the downward movement of the head 28 and after breaking thecircuit, slip past the'end of the bell-crank to permit closing of thecircuit at this point before the head 28 reaches the card-testing rangeof its movement. During the upward movement of the head 28, thebellcrank 143 is engaged by the beveledupper face of the plate 146 andswung about its pivot out of the 'path of the plate. It will be seenthat the gate 39, if opened for ejection of a defective card, 'willremain open until a certain point is reached in the next downwardmovement of the head 28. The circuit will then be-broken temporarily toclose the gate. Obviously the plate 146 must be insulated from the head28 and this may be done by placing the plate between-two plates 147 ofinsulating material and securing the assemblage to the head by means ofscrews 148, the holes in the plate 146 being of sufficient size toprevent contact with the screws.

buch breaking of the circuit by the plate 146 occurs on each down strokeof the head 28, but if the machine is stopped with the head 28 in raisedposition, the circuit will be left closed and it will be necessary toopen the switch 124. Upon starting the machine again the switch 124should be closed.

The operation of the preferred form of the invention is as follows: Ateach downward movement of the head 28, the. detector circuit is brokenat the device or switch 130 and closed again before the head reaches thecardtesting position. In case a defect in a card is found by the testingdevice, a pin 99 at that point is depressed to connect the plates 97 and98 with the plate 102 and completes a circuit through conductor 123,switch 124, battery 122, conductor 121, switch 130, conductor 121, coil109, conductor 125' and the machine frame to which the conductor 125 andthe plates 97 and 98 are grounded. The core 107, drawn downwardly by theenergized coil, acts, through band 105 and disk 103, to swing the gate39 outwardlyand also to depress the arm 114 into engagement with thespring contact 126 to complete through conductor 127 a path ofnlowerresistance thus. reducing the current through the depressed pin 99 tosuch an extent as to avoid sparking between the pin and the plate 102,which may, however, be made of material which would not easily beinjured by any sparking which mi ht occur.

Kfterthe circuit is completed through the conductor 127, the core 107may be drawn down until checked by the stop 117 and the shoulder 116 onthe disk 104 or by engage-' ment of the spring contact 126 with the stop129. The gate 39 will then be held open and,

upon the upward movement of the head 28 and actuation of the rollers 34and 35, the defective card will be ejected past the open gate-39 and outof the machine. During the next downward movement of the head the switch130 will be opened temporarily to permit the gate 39 to fall to closedposition and closed to enable another card to be tested.

Although according to the preferred form of the invention the testingdevice is used to cause ejection of each defective card without stoppingthe machine, the testing-device may be used to control a signal or tostop the machine upon detection of a defective card. A

signal could be controlled in the same manner and an arrangement toeffect stopp ng is" shown diagrammatically in Fig. When a circuitclosing pin 99 comes into engagement with the plate 102, a circuit iscompleted past sai through conductor 150, switch 151, current supplymeans such as a battery 152, a conductor 153, a coil of anelectro-magnet 154, a conductor 155, and a switch 156 comprising an arm157 and a contact 158 grounded to the machine frame. 3

vThe electro-magnet 154 when thus energized swings a switch arm 159against the action of a spring 160 into engagement with a contact 161and completes a circuit including a suitable source of power such as abattery 162, to operate a circuit breaker 163, which may be of any Wellknown type, and swin the handle 164 to ineffective position, there ystopping the machine. In this movement the handle 164 strikes theswitcharm 158 to break the circuit through the battery 152. Upon restoring thehandle 164 to effective position for starting the machine, the switcharm 158 will be restored to circuitelosing position by means such as aspring 165, so that stopping of the machine may againbe effected whenanother card is found to be defective.

Inasmuch as, according to the preferred form of the present invention,the testing of the material is effected on the finished cards and onlyat the index points, there is no waste of material due to rejection fordefects which would have no effect to cause improper operation of thecard-controlled machines. Furthermore, by efieeting such testing at thetime each card is cut from a strip, there is no delay in production dueto such testing.

In the preferred form of the invention the gate-controlling circuit isclosed at points be.- neath the defective cards, thereby preventingsparking through .the defective spots in the cards; and sparking at thecircuit-closing points is also avoided by the short-eircuitlngarrangement hereinbefore described.

Variations may be resorted to within the scope of the invention andportions of the improvements may be used without others.

Having thus described our invention, we claim:

1. In a machine of the character described, means for testing each of asuccession of statistical cards sup lied at a testing. position fordefects at t e index points thereof, means for ejecting each card assoon as tested, and a device normally positioned to direct ejected cardsto a collection position and con-. trollable by said testing device upondetection of a defective card for movement to a position to (permit suchdefective card to move collection position.

, 2. In a machine of the character described,

card cutting means including a reciprocable head, and card-testing meanscomprising a pin box mounted on the cutting head and havmgspring-pressed pins to engage the severed card at all the index meansbeneath the path of the card to cooperate with any of saidspring-pressed pins pass points thereon and ing through a defective cardto cause rejection of such defecting card.

3. In a machine of the class described, means for cutting cards fromstrips, means for testing each card for defects during the cuttingthereof, and means controlled by said testing means for separatingdefective cards and good cards.

4. In a machine of the class described, means for cutting from strips ofsuitable Width cards having index points, means for testing each card,as cut, for defects at such index points,'and means controlled inaccordance with the result of the test forcausing the good and defectivecards to be delivered to different positions.

5. In amachine'of the class described, a support for an unperforatedcard to be tested, a reciprocable member having yieldable devices toengage all of the index points of the card simultaneously, means to feedthe tested 1 cards to a receiving position, and means rendered effectiveby the passage of one of said devices through a defective spot to causethe defective card to be ejected from the machine and thereby separatedfrom the good shiftable gate normally in the path of the:

ejected cards, a device for testin each card simultaneously. with'thecutting t ereof, and

means controllable by the testing device for shifting said gate topermit the defective cards to pass out of said receiver.

8. In combination, means for testing statistical cards comprising a pinbox reciprocable to mozve the pins thereof into and out of engagementwith the index points of a card in testing position, means for ejectingthe card from the testing position when the pin" box is moved therefrom,a receiver for the ejected cards, a gate to prevent passage of the cardsout of the receiver, means controlled by the testing device to open thegate jacent one face of a card in testing position 1 and having aplurality of circuit-closers, one for each. index pointon the card, anda plurality of feelers to engage the opposite face of the card at suchindex points and, in case upon detection of a defective card and meansof a defect at one of said points, to actuate thereon, means to ejecteach card when the pin box is raised therefrom, a gate normally in thepath of the ejected cards to effect collection thereof at that point, aset of springsfipported pins positioned beneath the testing position ofthe cards and actuable by the corresponding pins of the pin box whendefects are found at the index points, a device beneath thespring-supported pins to be en gaged thereby when defects in the cardsare detected, electrical means made effective by such engagement toshift the gate to ineffective position and to hold it in such positionafter the spring-supported pins are withdrawn from card device beneaththe same,

and means to effect return of the gate to effective position before thepin-box again reaches the card-testing range of its movement. 3

"-11. In a deviceof the character described,

a reciprocable pin box having yieldable pins to engage cards in thetesting position at all .of the index points thereon, means to ejecteach tested card when the pin box is raised, a device beneath thecard-testing position comprising yieldably supported pins to bedepressed by the pins of the pin box when defects appear at index pointson the cards,

and an insulated conductor plate with which the spring su ported pinscontact when depressed, a gat to check the ejected cards at thecollection position, electro magnetic means to open said gate'to permitdefective cards to pass out of the machine, a circuit closed byengagement of any of the spring supported pins with the insulated plateto energize said electromagnetic means, means to short-circuit thecontact through the de re'ssed pin to avoid sparking when the pinisreleased and to hold the gate open, and means to deenergize theelectromagnetic means to permit-the gate to close before the next cardtested is ejected.

12. In apparatus of the class described, a

1 testing device comprising yieldable members to engage one face of eachcard tested and a circuit-closing device at the opposite face of thecard and comprising yieldably supported pins to be depressed by saidmembers when projected through a defective spot in a card, and a plateof conducting material insulated from said guides but positioned forengagement by sa1d pins,-means to eject each card from the testingposition, a receiver for said cards, a gate shiftable to permit cards-topass out of the receiver, and means, lncluding a circuit closedby saidcircuit-closing device,

to open said gate to permit the defective cards 1 of said receiver,including a circuit closed by said card-testing device upon detection ofa defectlve card, a solenoid energized by sa1d circuit to open saidgate, and a switch closed by said solenoid to short circuit the portionof the circuit connected with the card-testing device and maintain acircuit through the solenoid to hold the gate open.

14. In apparatus of the class described, a

card-testin device, means to eject each card from sa1d ev ce whentested, a recelver fer sa1d cards, a pivoted gate, and means-to opensaid gate to permit defective cards to pass out ofsaid receiver,including a circuit closed by sa1d card-testing devlce upon detectionof' a defective card, a solenoid energized by saidcireuit to open saidgate, a switch closed by said solenoid to short circuit the portion ofthe circuit connected with the card-testing device and maintain acircuit through the solenoid to hold the gate open and means to breakthe solenoid circuit prior to the testing of the next card.

15. In apparatus of the class described, a device for testing cards,means to eject each card when tested, a pivoted gate normally directingthe ejected cards to a position for collection but swingable to a secondposition to permit cards to pass, to another position, a solenoid havinga core connected with said gate to swing it to said second osition', andan electrical system for controlllng said solenoid comprising a circuitcloser operable by said testing devlce, upon detection of a defect in acard, to energize said solenoid, a switch closed by saidv core to shortcircuit said circuit closer and keep the circuit closed through thesolenoid, and a switch openable by the testing device priorto thetesting of another card to deenergize the solenoid and cause the gatetoreturn to its normal'position. Y

16. A machine for testing record cards comprising a reciprocable pinbox, detecting pins carried by sa1d pin box and corresponding in numberto the index points upon the respective record cards, adevice arrangedto dehver defective cards to-a location different from perfect recordcards, means 1nclud1n an electro-magnet for automatically contro lingsaid device, a control plate arranged in the path'of said pins and anelectric circuit having all of said pins as one terminal and saidcontrol late as the other terminal, said circuit including saidelectro-magnet, whereby contact of any pin with said control platecloses said circuit to energize said electromagnet to operate saiddefective card device.

17 A machine for testing record cards comprising a reciprocable pin box,detecting pins carried by said pin box and corresponding in number tothe index points upon the respective record cards, a device arranged todeliver defective cards to a location difierent from perfect recordcards, means including an electro-magnet for automatically controllingsaid device, a control plate arranged in the path of said pins, anelectric circuit hav ing all of said pins as one terminal and saidcontrol plateasthe other terminal, said circuit including saidelectro-magnet, whereby contact of any pin with said control platecloses said circuit to energize said electromagnet to operate saiddefective card device, and means to automatically short circuit saidterminals to break said circuit and simultaneously maintain saidelectro-magnet energized.

those defective because of weak spots into the other position.

19. In a machine for sorting unperforated cards into groups of goodcards and cards defective because of holes in any one of a plurality ofpositions in the area adapted to receive perforations, a seriesof pins,means for bringing said pins against the card and through holes in thecard, means for delivering the good cards after atesting operation intoa certain one of two positions, and means for controlling the deliveryof defective cards into the other of said positions.

In Witness whereof we aflix our signatures.

ALFRED WEILAND. CHARLES A. MEZGER.

